代林旺;秦世耀;王瑞明;李少林;陈晨;

• 1:新能源与储能运行控制国家重点实验室(中国电力科学研究院有限公司)

摘要(Abstract)：

针对大容量直驱永磁同步风电机组的高电压穿越问题,研究了电网电压升高对全功率变流器母线电压的影响;在风电机组不同的无功输出情况下,分析了机组升压变压器阻抗对并网点电压影响规律。在此基础上,确定了电网高电压故障下无功电流注入的原则,提出了基于变流器动态无功控制的高电压穿越控制策略,并从"高电压判断-高穿执行-高穿结束"3个方面分析了主控系统协调配合机制。在MATLAB中建立了2.5 MW直驱永磁风电机组的仿真模型,实现了风电机组高电压穿越全过程动态仿真;利用电网高电压发生装置,在MW级直驱永磁同步风电机组上进行了高电压穿越现场试验研究,试验结果表明理论与仿真分析的准确性及控制策略的有效性。

关键词(KeyWords)： 直驱永磁同步风电机组;高电压穿越;动态无功控制;现场试验

Abstract:

Keywords:

基金项目(Foundation): 国家科技支撑计划项目(2015BAA07B01)~~

作者(Author): 代林旺;秦世耀;王瑞明;李少林;陈晨;

Email:

DOI: 10.13335/j.1000-3673.pst.2017.2077

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